Carbureter.



PATENTED JUNE 9, 1908.

0. E. BYRON.

GARBURETER.

APPLICATION FILED AUG. 13, 1907.

2 SHEETSSHEET 1.

IIIII l ii Illll Z Em my QN R.

w. m 3 S/Q h m? M W M @M A TTORNEYS PATBNTED JUNE 9, 1908.

0. E. BYRON.

GARBURETER.

APPLICATION FILED AUG. 13, 1907.

2 SHEETS-SHEET 2.

W/TNESSES INVENTOH UJ'raZF. figrarz A TTOHNE Y8 ORRA E. BYRON, OF SANFRANCISCO, CALIFORNIA.

GARBURETER.

No.'s90,4.94.

Specification of Letters Patent.

Patented June 9, 1908.

Application filed August 13, 1907. Serial No. 388,301.

ing chamber, the admission being controlled ultimately by the conditionof the vacuum within the mixing chamber.

Reference is to be had to the accompanying drawings forming a part'ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

"Figure 1 is a central vertical section through my iniproved carbureter,showing the relative positions of the various valvular members forregulating the air supply, and further showing the position of the sraying nozzle and of the heating acket for t e gases traveling from thecarbureter to the engine; Fig. 2 is a central section somewhat similarto Fig. 1, but" taken upon the line 22 of Figs. 1 and 3,looking in thedirection of the arrows and showing a float-controlled needle valve forregulating the supply-of hydrocarbon to the carbureter; and Fig. 3 is ahorizontal section upon the line3-3 of Fig. 1

looking in the direction of the arrows and showing the relativearrangement of the valvular members.

A hollow body portion 1, is provided with a reduced portion 1 and istapped by an inlet pipe 2 and an outlet pipe 3, the latter leading tothe engine. ferent diameters, are connected integrally together and aredisposed concentrically. The cylinder 4 is connected with the reducedportion 1 by ribs 1*. These cylinders are provided respectively with aport 6 and two ports7, all having the form of arcuate slots. A partition8, of annular conformity, encircles the cylinder 5 and is set offtherefrom so as'to form an annular compartment 9, encircling saidcylinder.

Slidably mountedwithin the cylinder 5 is a smaller cylinder 10,provided'with a substantially annular portion 11 connected integrallytherewith and spaced therefrom by arcuate slots 12. These slotsconstitute Cylinders 4, 5, of difports and are adapted to register withthe ports 7 and are of greater depth than the latter. A spraying nozzle13 is provided with a needle valve 14 operated by hand. This needlevalve regulates the flow of liquid hydrocarbon through a passage 15 andis used for' vaporizing said hydrocarbon as the latter is dischargedupwardly into the cylinder 10.

A disk 16 is provided with an upturned flange 17 of annular conformity,integral therewith and slidably engaging the inner surface of thecylinder 4. The-disk 16 is also provided with openings 16. The disk 16with its flange 17 and cylinder 10 having its annular portion 11.,together constitute a valvular member. This valvular member as a wholeis-movable relatively to the cylinders 4, 5.. The proportions of theparts are such that when the valvular member is lowered, the annularportion 11 gradually uncovers the ports 7 and when these are completelyopen, the flange 17 begins gradually to uncover the port 6. r

A valve stem is shownat 18 and is connected with a diaphragm 19 mountedwithin a diaphragm chamber 20. Thevalve stem 18 terminates in anadjustable head 21 which is engaged constantly by a spiral spring 22encircling the valve stem. The normal position of the diaphragm 19, whenthe device is idle, is the one shown. When, however, there is a partialvacuum below the diaphragm 19, the valve member descends to a greater orlesser extent dependent upon the pull exerted by the vacuum.

A jacket 23 of annular form encircles the outlet pipe 3 and is providedwith radially disposed tubes 24. These tap into pockets 25 provided inthe outlet pipe 3. Exhaust gases of combustion are supplied into theacket 23 by a pipe 26, whence they pass into the pockets 25 andoutwardly through a pipe 27, thus making their escape. In doing thisthey heat the air and vapor passing through the outlet pipe 3. I

The body portion 1 is provided with an extension 28 in which is acylindrical weight 29. Below the extension 28 and integral therewith isa threaded boss 30 having an aperture 31 disposed centrally thereof.This boss is engaged by a threaded pipe 32 through which the hydocarbonliquid is supplied to the carbureter. A guide 33 is dISPOSQd overthe aperture 31 and extending through this guide is aneedle valve 34'extending entirely through valve being shown at 35 and projectingthrough the upper surface of the ody portion 1.

Mounted upon a piyot 36 is a lever 37 having an upwardly projecting end37*. A float 38, having substantially the form of a hollow ring,encircles the smaller cylinder 10 and rests upon a volume of hydrocarbonliquid 40 contained in the body portion 1.

Whenever the body portion is nearly empty, the ring float 38 being nolonger buoyed up rests partially upon the end 37 a of the lever 37,thereby turning the lever and raising the weight 29. The needle valve 34is therefore lifted from its seat and the liquid flows in. This liftsthe ring float, allowing the lever37 to rise, and the weight 29 causesthe needle valve 34 to again close the aperture 31. In this way theinflow of gasolene is so regulated that the supply within the carbureteris approximately constant.

The operation of my device is as follows:

The inlet pi e 2 communicating with the air,

and the out et pi e 3 being connected with the engine, and t e latterbeing in action, a partial vacuum is produced below the diaphragm 19.This causes the diaphragm to descend and the annular member 11 partiallyuncovers the orts 7. being opened y hand to a ro er de ree and thesuction bein continue tlie fueI hydrocarbon is spraye from the nozzle 13and vaporized, the va orization being ir'n roved by the liquid strikingagainst the un er side of the disk 16 which thus servesas a baffle. Theadmixture of air and vapor constitutes the explosive aeriform bodyemployed for driving the engine. The explosive mixture next passes outthrou h the outlet pipe 3 and in so doing-is heate as above described.

The ports 7 are the ones ordinarily used, and hence I designate themasthe main ports. When, however, the tension of the vacuum exceeds acertain predetermined limit, and the diaphragm 19 is depressedaccordingly so that the ports thus become partially or entirelyuncovered, the supply of air is greatly increased for the reason thatair is now ad- The needle valve 14 through of varying quantities of air,and a vacuum-controlled diaphragm connected with said valve member foractuating the same. 4 4

2. In a carbureter, the combination of a large cylinder rovided with aport, a small cylinder provi ed with a port, a valve member providedwith a flange slidably mounted within said large cylinder and furtherprovided with a portion slidably mounted within said small cylinder,said flange and said small portion pf said valve member being adapted touncover said ports in a predetermined order of succession, andvacuum-controlled mechanism for moving said valve member.

3. In a carbureter, the combination of a body portion provided with amain port and with an auxillary port, and a valve member provided with aportion normally covering said main port, and with another portionnormally covering said auxiliary port, said portions of said valvemember-being so positioned as to uncover in succession said main portand said auxiliary port, and vacuumcontrolled mechanism connected withsaid valve member for moving the same.

In testimony whereof have signed my name to this specification in thepresence of two subscribing witnesses.

' ORRA E. BYRON. Witnesses:

FELIX GRANT, A. E. YORK.-

